353534981 has 4 divisors (see below), whose sum is σ = 353575200. Its totient is φ = 353494764.

The previous prime is 353534977. The next prime is 353534983. The reversal of 353534981 is 189435353.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 353534981 - 2² = 353534977 is a prime.

It is a super-2 number, since 2×353534981² = 249973965581340722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (353534983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 641 + ... + 26598.

It is an arithmetic number, because the mean of its divisors is an integer number (88393800).

Almost surely, 2^353534981 is an apocalyptic number.

It is an amenable number.

353534981 is a deficient number, since it is larger than the sum of its proper divisors (40219).

353534981 is a wasteful number, since it uses less digits than its factorization.

353534981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40218.

The product of its digits is 194400, while the sum is 41.

The square root of 353534981 is about 18802.5259207374. The cubic root of 353534981 is about 707.0945079113.

The spelling of 353534981 in words is "three hundred fifty-three million, five hundred thirty-four thousand, nine hundred eighty-one".